 |
A clear gel containing an experimental compound named GW8510
may help prevent
hair loss from chemotherapy, according to scientists at Glaxo Wellcome drug company.
Hair loss is the second most common side effect of chemotherapy
after nausea. In a preliminary study with rats, researchers found
that the gel prevented hair loss in 50% of the rats who underwent
chemotherapy with the drug etoposide (also called VP-16, or Vespid).
Among the rats who did not receive the gel, 90% experienced hair
loss when given chemotherapy.
Dr. Stephen T. Davis who presented the results of the study
at the annual meeting of the American Association for Cancer
Research called the results of the rat study "stunning."
Chemotherapy targets rapidly dividing cells (an attribute of cancer
cells) but cannot distinguish between cancer cells and normal cells.
According to Dr. Davis, the gel works by temporarily stopping the
rapid division of hair follicles, thus protecting them from the
effects of chemotherapy.
In the study, no side effects were seen among the rats
treated with the gel. The researchers do not believe the GW8510
compound in the gel has toxic effects or interferes with
chemotherapy treatment. GW8510 is applied on the surface of the
scalp and does not enter the bloodstream. If the treatment becomes
available for cancer patients, patients would apply the gel to their
hair before their chemotherapy session and wash it our a few hours
after the session, said Dr. Davis. The compound does not appear to
be effective 24 hours after treatment, and researchers say the gel
does not cause any observable cosmetic effects on the hair.
Studies have also shown that the gel prevents hair loss in
rats who were given two other common chemotherapy drugs, Adriamycin
(generic name, doxorubicin) and cyclophosphamide (brand name,
Cytoxan). Both drugs are used to treat
breast cancer patients while etoposide is
used in patients with bladder, lung, or testicular cancers. Though
the animal studies have been promising, researchers are unsure if
clinical
trials with
humans will have the same results. Rats do not always respond
similarly to drug treatments as humans. For instance, rats do not
lose their hair when given
Taxol (generic name paclitaxel), a
common drug used to treat breast cancer, but many human patients
lose all of their body hair, including eyebrows.
Dr. Davis and his colleagues are set to begin human trials
with the gel. Dr. William Hait, MD, PhD, director of the Cancer
Institute of New Jersey, says the GW8510 study is one of the first
that aims to improve the quality of life for breast cancer patients.
Hair loss can be a devastating side effect of chemotherapy for many
women. Some women over age 40 avoid getting
screening
mammograms
for fear that they will have breast cancer and have to undergo
chemotherapy.
While physicians often prescribe drugs to help reduce nausea
from chemotherapy, little has been done to address the issue of hair loss. One
early attempt at preventing hair loss involved using ice caps.
Cancer patients undergoing chemotherapy would wear ice caps to
freeze the scalp, hoping to protect their hair from the effects of
chemotherapy. Ice caps were often painful and only froze portions of
the scalp. According to researchers, the new gel is painless and
works by temporarily stopping the rapid division of hair follicles
so that they will not be affected by chemotherapy.
Not all patients who undergo chemotherapy experience hair
loss. Hair loss depends on a variety of factors including the
combination of anti-cancer drugs given, their doses, and the
duration of treatment. Most patients do not lose their hair until
two weeks after chemotherapy has begun. A variety of wigs, turbans,
and hair loss accessories are available for patients who undergo
chemotherapy (see link below).
Additional Resources and
References
- To learn more about coping with hair loss during
chemotherapy, please visit http://www.imaginis.com/breasthealth/wigs.asp
- To learn more about breast cancer treatment with
chemotherapy, please visit http://www.imaginis.com/breasthealth/chemo.asp
- For a list of companies that provide hair loss accessories
(such as wigs and turbans), please visit
http://www.imaginis.com/breasthealth/breast_prostheses.asp
- The April 2, 2000 Associated Press report by Daniel Q. Haney, "Gel Halts Post-Chemotherapy
Hair Loss," is available at
http://www.msnbc.com/news/389953.asp?cp=1
- The April 3, 2000 Reuters Health report, "Gel Promising in Preventing Cancer Drug Hair
Loss," is available at
http://dailynews.yahoo.com/h/nm/20000403/hl/dge_4.asp
- The April 2, 2000 WebMD report
by Peggy Peck, "Hair Today, Gone Tomorrow: Hope for
Chemotherapy-Induced Hair Loss," is available at
http://my.webmd.com/content/article/1728.56164
Return to Breast Health News
Archives |